We report on an interpretation of the 4f $\to$ 5d absorption and fluorescence spectra as well as the previously un-reported intra-4f transitions between the Stark levels of the ²F_5/2 and ²F_7/2 multiplets of the single seven-fold coordinated, C₁ symmetry site for Ce³⁺ in Y₂SiO₅. Further, We also give the corresponding crystal-field parameters determined by fitting to the observed energy level data and the ground state Zeeman g tensor obtained from previously reported electron paramagnetic resonance (EPR) measurements. Finally we present a temperature-dependent analysis of the linewidth and position of the 4f $\to$ 4f absorption lines.

中文翻译：

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掺杂Ce ^3+的Y ₂ SiO _5的内部和内部构型电子跃迁：光谱学和晶体场分析

我们报告了对4 f的解释 $\to$5 d吸收和荧光光谱，以及先前未报道帧内4 ˚F的斯塔克水平之间的转变² ˚F _5/2和^2个˚F _7/2单七倍协调，C的多重峰_1个对称的网站Y ₂ SiO _5中的Ce ³⁺。此外，我们还给出了相应的晶体场参数，这些参数是通过拟合观测到的能级数据和从先前报道的电子顺磁共振（EPR）测量获得的基态Zeeman g张量确定的。最后，我们对4 f的线宽和位置进行了温度依赖性分析 $\to$4 f吸收线。